وَهَذِهِ الْأَرْبَعَةُ يَعْنِي التَّمَنِّي وَالِاسْتِفْهَامَ وَالْأَمْرَ وَالنَّهْيَ
These four are wishing, questioning, commanding and prohibiting.
Four requestive forms—wishing, interrogating, commanding and prohibiting—may be followed by a clause interpreted through an implied conditional. This can explain a jussive response or an expressed response connector.
The rule is not automatic. The following clause must state a consequence whose realization is intelligibly contingent on what the preceding request would bring about.